An armed man waves his rifle after buildings and cars were set on fire inside the US Consulate compound in Benghazi late on Sept. 11, 2012.

Tunisia announced that it had arrested a 28-year-old man suspected of being linked to the US consulate attack in Benghazi last month, which killed US Ambassador Chris Stevens and three other Americans.

Harzi's lawyer, Ouled Ali Anwar, told the Associated Press that the suspect was arrested in Turkey earlier this month and repatriated on Oct. 11. Anwar said Harzi had been told by a judge on Tuesday that he was charged with "membership of a terrorist organization in a time of peace in another country."

A source told the AP that Harzi's dossier showed prosecutors linking him to the attacks on Sept. 11 on the US consulate.

CBS News cited a US government official saying that investigators in America were reviewing footage of the attack from a security camera.

Harzi could face up to 6 to 12 years in prison for the charges, according to the anti-terrorist law which was implemented in 2003 in Tunisia.